noun Chiefly British.
Examples from the Web for childermas
A central feature of the celebration was a pompous church procession following vespers on Childermas eve.
See thou fall not hastily into the like offence, else shalt thou smart from Childermas to All-hallowtide.
On Childermas day (the 28th of August) the license of the English visitors had grown to such a height, that it was.The Boke of Noblesse|Unknown
On the eve of Innocents day (Dec. 28th), the priests gave way to the choir boys, the children, for the celebration of Childermas.